Feedback

Electrostatic and Environmental Control of the Trion Fine Structure in Transition Metal Dichalcogenide Monolayers

ORCID
0000-0002-2541-1100
Affiliation
Faculty of Physics, University of Regensburg, 93040 Regensburg, Germany
Zhumagulov, Yaroslav V.;
ORCID
0000-0001-7446-7728
Affiliation
Faculty of Physics, National Research University Higher School of Economics, 101000 Moscow, Russia
Vagov, Alexei;
ORCID
0000-0003-0805-8437
Affiliation
ITMO University, 197101 St. Petersburg, Russia
Gulevich, Dmitry R.;
ORCID
0000-0002-0234-8188
Affiliation
Department of Electrical Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
Perebeinos, Vasili

Charged excitons or trions are essential for optical spectra in low-dimensional doped monolayers (ML) of transitional metal dichalcogenides (TMDC). Using a direct diagonalization of the three-body Hamiltonian, we calculate the low-lying trion states in four types of TMDC MLs as a function of doping and dielectric environment. We show that the fine structure of the trion is the result of the interplay between the spin-valley fine structure of the single-particle bands and the exchange interaction. We demonstrate that by variations of the doping and dielectric environment, the fine structure of the trion energy can be tuned, leading to anticrossing of the bright and dark states, with substantial implications for the optical spectra of the TMDC ML.

Cite

Citation style:
Could not load citation form.

Access Statistic

Total:
Downloads:
Abtractviews:
Last 12 Month:
Downloads:
Abtractviews:

Rights

License Holder: © 2022 by the authors.

Use and reproduction: